我正在嘗試進行更改 redux 狀態的調用，但我在調度操作時遇到了問題。我確信所有導入都是正確的。我認為主要問題在 mapStateToProps 但似乎無法找到它。稱呼 onClick={() => this.props.ethereum}mapStateToProps 和其他...const mapStateToProps = state => {  return({    depositMenu: state.depositMenu  })}const mapDispatchToProps = dispatch => {  return ( {    visa: () => dispatch(visa()),    bitcoin: () => dispatch(bitcoin()),    ethereum: () => dispatch(ethereum())  })}export default connect(  mapStateToProps,mapDispatchToProps)(Deposit)動作export const visa= () => {    return {        type: 'VISA'    }}export const bitcoin = () => {    return {        type: 'BITCOIN'    }}export const ethereum = () => {    return {        type: 'ETHEREUM'    }}減速器const MainPageDeposit = (state = 'visa', action) => {    switch (action.type) {        case 'VISA':            return state = 'visa';        case 'ETHEREUM':            return state = 'ethereum';        case 'BITCOIN':            return state = 'bitcoin';        default:            return state;    }}export default MainPageDeposit;并結合減速器import MainPageDeposit from './MainPageDeposit';import { combineReducers } from 'redux';const allReducers = combineReducers({    depositMenu: MainPageDeposit,})export default allReducers;